https://www.socialeurope.eu/2017/07/what-can-we-learn-from-the-nordic-model/
https://www.bloomberg.com/news/articles/2017-06-15/eu-citizens-want-a-brexit-style-vote-to-say-yes-to-staying?cmpid=BBBXT061617_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170616&utm_campaign=brexit
http://www.ecfr.eu/article/commentary_there_is_life_for_the_eu_after_brexit
https://www.opendemocracy.net/can-europe-make-it/nick-rider/catalonia-spain-referendum-there-is-more-than-one-nationalism-in-iberian-peninsula